Pittsburgh officials plan a major study of Downtown transportation this month that could produce dedicated bicycle lanes and alter car and bus traffic in the heart of the city, Mayor Bill Peduto said on Tuesday.

Peduto said it will be the city’s closest look at Downtown transportation since the 1950s.

“What we do in the next 10 years will define what the city looks like for the next 100 years,” Peduto said during the Pittsburgh Downtown Partnership’s annual meeting in the David L. Lawrence Convention Center.

Workers will install the first Downtown bike lane — separated from vehicle traffic by a physical barrier — as a demonstration project by late summer, before the city hosts the Pro Walk/Pro Bike/Pro Place conference in September, Peduto said. Another protected lane will be installed elsewhere in the city.

“It’s the first of what I hope will be many bike lanes Downtown,” said Pittsburgh Downtown Partnership CEO Jeremy Waldrup.